This page was created to possibly help others who don't understand endothermic and exothermic reactions as well as they want or need to. The basic definitions are easy to understand: Endothermic: a reaction or process which absorbs heat from its surroundings. Exothermic: a reaction or process which gives off heat to its surroundings. The problem comes in trying to state which specific examples of reactions are which, because usually a lot of things are going on at the same time.
A HillâSachs lesion, or HillâSachs fracture, is a cortical depression in the posterolateral head of the humerus. It results from forceful impaction of the humeral head against the anteroinferior glenoid rim when the shoulder is dislocated anteriorly.
The scapula, or the shoulder blade, is the flat triangular bone that is found in the shoulder. Scapular pain is a type of pain that occurs when a scapular nerve (originating from the neck) is pinched. The pain usually starts at the root of the nerve, the neck, and then goes down to the shoulder.